<!DOCTYPE html>
<style>
.red {
  color: red;
}
</style>
<p>Tests pass if initial "R" are in red and "X" are in black.</p>
<div><span class="red">R</span> first-letter applies in div.</div>
<div>X first-letter do not apply if display: flex</div>
<fieldset>X first-letter do not apply if display: flex, even in fieldset</fieldset>
